Finding the Fourth Proportional to 1,111.82, 1,667.14 and 495.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.82 : 1,667.14 = 495.70 : x
2. Step 2: Convert to fraction form
   1,111.82/1,667.14 = 495.70/x
3. Step 3: Cross multiply
   1,111.82x = 1,667.14 × 495.70
4. Step 4: Simplify right side
   1,111.82x = 826,401.30
5. Step 5: Solve for x
   x = 826,401.30/1,111.82
6. Step 6: Final answer
   x = 743.29